@@ -3178,7 +3178,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_get_volsw);
*
* Callback to set the value of a dapm mixer control.
*
- * Returns 0 for success.
+ * Returns either 0 or 1 for success: 1 if changed, 0 if unchanged.
*/
int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
@@ -3311,7 +3311,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dapm_get_enum_double);
*
* Callback to set the value of a dapm enumerated double mixer control.
*
- * Returns 0 for success.
+ * Returns either 0 or 1 for success: 1 if changed, 0 if unchanged.
*/
int snd_soc_dapm_put_enum_double(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
snd_soc_dapm_put_volsw() and snd_soc_dapm_put_enum_double() returns 0 if the value is unchanged and 1 if changed. Both 0 and 1 indicate a success. Signed-off-by: Tzung-Bi Shih <tzungbi@google.com> --- sound/soc/soc-dapm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)